EP 1682748 B1 20080402 - METHOD AND DEVICE FOR INSTALLING A SELF-DRILLING EXPANDABLE ROCK BOLT AND A SELF-DRILLING ROCK BOLT
Title (en)
METHOD AND DEVICE FOR INSTALLING A SELF-DRILLING EXPANDABLE ROCK BOLT AND A SELF-DRILLING ROCK BOLT
Title (de)
VERFAHREN UND VORRICHTUNG ZUM INSTALLIEREN EINES SELBSTBOHRENDEN EXPANDIERENDEN GEBIRGSANKERS UND SELBSTBOHRENDER GEBIRGSANKER
Title (fr)
PROCEDE ET DISPOSITIF POUR INSTALLER UN BOULON D'ANCRAGE EXTENSIBLE AUTOPERCEUR ET BOULON D'ANCRAGE EXTENSIBLE AUTOPERCEUR
Publication
Application
Priority
- SE 2004001514 W 20041020
- SE 0302997 A 20031113
Abstract (en)
[origin: US7377724B2] In a method and a device for installing, in a rock wall or roof, a self-drilling expandable rock bolt ( 2 ) having a drill bit portion ( 5 ), an expansion portion ( 9 ) and a connecting portion ( 10 ), in a rock breaking step, the self-drilling rock bolt ( 2 ) is provided with a rock breaking movement and flushing fluid for producing a bore hole, and in an expansion step, pressurized expansion fluid is introduced into the expansion portion ( 9 ) in order to expand it so as to be fixed to the inside of the bore hole. Expansion fluid is introduced by means of a swiveling device ( 6 ) so that the rock bolt ( 2 ) is free to move during the rock breaking step, and be tightened against the rock bolt ( 2 ) in the expansion step in such a way that a sealed channel for expansion fluid is established between an expansion fluid source and the expansion portion ( 9 ). The invention also concerns a self-drilling rock bolt.
IPC 8 full level
E21D 20/00 (2006.01); E21D 21/00 (2006.01)
CPC (source: EP KR US)
E21D 20/00 (2013.01 - KR); E21D 20/003 (2013.01 - EP US); E21D 21/00 (2013.01 - KR); E21D 21/0053 (2016.01 - EP US); E21D 21/0073 (2016.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005047649 A1 20050526; AT E391225 T1 20080415; AU 2004289935 A1 20050526; AU 2004289935 B2 20091029; CA 2542261 A1 20050506; CA 2542261 C 20130108; CN 100519991 C 20090729; CN 1878930 A 20061213; CY 1107971 T1 20130904; DE 602004012884 D1 20080515; DE 602004012884 T2 20090402; DK 1682748 T3 20080804; EP 1682748 A1 20060726; EP 1682748 B1 20080402; ES 2303109 T3 20080801; JP 2007511686 A 20070510; JP 4411324 B2 20100210; KR 101160707 B1 20120628; KR 20060109433 A 20061020; PL 1682748 T3 20080930; PT 1682748 E 20080606; SE 0302997 D0 20031113; SE 0302997 L 20050514; SE 526132 C2 20050712; SI 1682748 T1 20081031; US 2007122238 A1 20070531; US 7377724 B2 20080527
DOCDB simple family (application)
SE 2004001514 W 20041020; AT 04793816 T 20041020; AU 2004289935 A 20041020; CA 2542261 A 20041020; CN 200480033122 A 20041020; CY 081100551 T 20080526; DE 602004012884 T 20041020; DK 04793816 T 20041020; EP 04793816 A 20041020; ES 04793816 T 20041020; JP 2006539424 A 20041020; KR 20067007388 A 20041020; PL 04793816 T 20041020; PT 04793816 T 20041020; SE 0302997 A 20031113; SI 200430760 T 20041020; US 57463504 A 20041020